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(N9 Model.)

0. P. JOHNSON.

STAPLING IMPLEMENT.

Patented Oct. 30; 1888.

"'ra'rns PATENT tries.

OSRO 1?. JOHNSON, OF DETROIT, MICHIGAN, ASSIGNOR TO H. F. \VHITE, OF SAME PLACE.

STAPLlNG IMPLEMENT.

SPECIFICATION forming part of Letters Patent No. 391,799, dated October 30, 1888.

Application filed April 16, 1888.

To (LZZ whom it may concern:

Be it known that I, Osno P. JGHNSON, a citizen of the United States, residing at De troit, county of llayne, State of Michigan, have invented a certain new and useful Improvementin Stapling Implements; and Ideclare the following to be a full, clear, and exact description of the same, such as will onable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to a novel and useful stapling implement for engaging and securing any suitable staple, as a paper or book fastener, and analogous purposes.

My design and object in this invention are to provide a stapling implement of this class of more simple construction than those heretofore employed, while at the same time itshall be more convenient, more efficient, more economical, and more salable than those previously used.

I accomplish my object as illustrated in the accompanying drawings, and as hereinafter described, and pointed out in the claims.

In the drawings, Figure 1 is a view illustrating my invention in its normal relation of parts. Fig. 2 represents thedevice and relation of parts assumed at the limit of their operation. Fig.3 is a front view showing the lower jawin section; Fig. 4, a detail view with the sliding head removed from guide arm. Fig. 5 is a separate view of the head, Fig. 6, a view looking to the rear of the sliding head.

A A represent the two jaws of the implement with their projecting arms a a pivotally eonnccted,as at a These jaws are constructed and engaged in a manner analogous to that of a conductors punch, and are preferably provided with a spring, A, to normally open the jaws ready for use. The jaw A constitutes a drivingjaw, and at its forward extremity is provided with a sliding head, B, engaged thereupon in any suitable manner, and constructed to receive any ordinary staple to be employed as a paper or book fastener. WVhile I do not limit myself to any precise manner of engaging said head upon the jaw, I find the following to be a suitable and desirable way of accomplishing the said engagement.

Upon the Serial No. 270,729. (No model.)

end of thejaw A, I engage a guidearnnC, as by a screw, 0. This will permit the ready removal of the arm, if desired; and to prevent any lateral turning of the said arminits engagement upon the jaw the arm may be recessed, as at c, to receive a corresponding shoulder, a upon the jaw. I n this manner the arm will be held rigidly in place and form a firm guide and support for the sliding head located thereupon. It will be convenient to construct the said head with marginal flanges to embrace the edges of the guide arm 0 and permit the head sliding thereupon.

To limit the movement of the head and prevent its displacement from the guide-arm, the head may be constructed with an elongated orifice, b". By projecting the head of the screw 0 through said orifice it will form an effectual stop to the movement of the head, permitting it to reciprocate simply the length of said orifice and prevent its disengagement. The flanges of the head extending to the lower extremity are also adapted to receive and properly hold a staple-fastener, D, its prongsbeing directed toward the opposite jaw of the implement.

To hold the sliding head in normal position ready to receive the staple, I prefer to employ any suitable spring, E, which may be engaged upon the jaw, as at e, and have a bearing upon the upper end of the sliding head.

The operation of the device will now be readily understood. A staplefastener is located in the lower end of the sliding head, when the operator, seizing thehandles or arms of the implement, causes the sliding head to impinge upon the opposite jaw, A. As force is applied the sliding head is forced along the guide-arm to the limit of its movement. The lower edge of the arm 0 is thereby brought against the staple, which, by continued pressure, is forced into the paper located between the jaw A and the sliding head.

To turn the prongs of the staple-fastener inward, as desired, in order that it may be so clinched in place, the clinching-jaw A is constructed adjacent to the contact-point of the sliding head with a groove, a, the end walls thereof being slanted or curved inward, as shown in Fig. 3. Thus when the prongs come in contact with the inwardly-sloping surfaces of the groove they are bent inward, and when the operation is completed the staple is effectually clinched.

I design to construct thesliding head of any desired size, and such heads of various sizes, as may be-desired, may be engaged upon the jaw, as the engagement is preferably a removable one. Thus the guide-arms 0 may be made of varying sizes to correspond to the size of the head desired, and any required size of head may be readily applied,with itsguide, by simply adjusting the screw 0, which may be done quickly. Thus different sizes of heads and guides are readily interchangeable. As staples are made 'of different sizes, a sliding head corresponding thereto may very conven' iently be applied to the implement. In this manner any assortment of various sizes of staples may be used by an implement of my invention, and in a very economical manner, as the head and the guide may each be made of sheet metal and shaped to required form.

I do not limit myself to any method of en gaging the guidea-rm, as it may be either integral or removable, as may be preferred, and may be of any desired construction.

What I claim is- 1. A stapling implement consisting ofjaws A A, one of said jaws provided with ashoulder, a, an arm formed with a recess,a',ascrew, and a sliding head, substantially as set forth.

2. A stapling implement consisting of the following elements, namely: the arms aa, provided with jaws A A, one of which is formed with a groove, a, while the other is provided with a driver, 0, formed with a recess, 0, a screw, 0, a shoulder, a ,-a sliding verticallyslotted head, B, and springs for retracting said head and said arms.

3. A stapling implement consisting of a driving-jaw, A, and clinching-jaw A, pivotally connected, said driving-jaw having in combination therewith a driver, 0, a connecting-screw, c, uniting said arm upon the driving-jaw, a sliding head, 13, supported upon said driver and constructed with a verticallyclongated aperture, 0*, the head of the screw projecting through said aperture, and said driving-jaw provided with a shoulder to prevent the lateral movement of said driver, substantially as set forth.

In testimony whereof I sign this specification in the presence of two witnesses.

OSRO P. JOHNSON.

\Vitnesses:

N. S. WRIGHT, H. F. WHITE. 

